There were many factors that went into the failure of artifact, gameplay was not one of them and is still solid to this day. The biggest problem was the monetization, and not really the monetization itself, but the timing of monetization. Hearthstone conditioned people to want free cards and earn free rewards by playing the game, artifact was a digital representation of a physical card game where you could literally build decks for like $10 and enjoy it, the allure of free low quality shit will always overshadow high quality paid content and it’s just fucking sad. Now look at hearthstone, a shit husk of a game it once was.